American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 78
oreach size of pipe, and these are illustrated in Fig. 3, Set No. i con-sists of a ring and plug conforming in all dimensions to the Briggsstandard, and is known as the standard reference set. The plugscrews into the ring wnth faces flush — as indicated by the positionof the two gages. The flat… … £>iT«XAW:xWA\WxW;«-.R3! Set No. 2 ^^=^~=^-- Set No. 3 Working Allowance Gages. Inspection Allowance Gages. Fig. 3. — Briggs Pipe Thread Gages Set No. 2 — the working allowance set — consists of the plugalready described and a ring whose thickness is equal to the standardring less the allowance…
Machine-shop practice
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